428 Dr. R. Konig on the Simultaneous 



E. Intervals with the fundamental note c w ( = 2048 v.s.). 



If we now take c"' for the fundamental note of the interval, 

 we arrive at that part of the scale which is especially adapted 

 for the observation of the beat-notes, as the deepest octave was 

 for the examination of the single beats which have not yet 

 blended into one note. 



The beat-notes of the first period may be heard in the fol- 

 lowing manner. The note c'" forms with 



Interval m ml 



d" 



8: 9 



c 







2389-3 v. s 



6: 7 



f 







e'" 



4: 5 



d 



9" 



f" 



3: 4 



f 



f" 



2816 v. s. 



8:11 



9' 



e" 



g 1 " 



2: 3 



c" 



e" 



3328 v. s. 



8:13 



e" 



9' 



a!' 1 



3: 5 



/" 



f 



3584 v. s. 



4: 7 



9" 



c' 



V" 



8:15 







c 



1 

 m ' 

 m 



is heard alone and distinctly, 

 is heard alone and clearly. 



m is clear, m f weaker than m. 



m and m! melt into one sound. 



m and mf are equally loud. 



m = m / , the note is very loud. 



m and mf equally loud and di- 

 stinct. 



m and m 1 louder than at the fourth, 

 and also to be heard singly. 



m and mf about equally loud and 

 distinct. 



m quite inaudible, mf audible and 

 distinct. 



In the second period, c'" : c iv to d" : g lv , the beat-notes 

 are heard in the following manner: — e'" with 



Interval m m! ', 



d iy 4: 9 d g" m distinctly audible, mf scarcely 



perceptible. 

 e iy 2:5 c" c' m = mf distinctly audible. 



/ IV 3: 8 f" f m and mf about equally loud. 



5632 v. s. 4: 11 g" c' m very faint, mf more distinctly 



audible than m. 



Third period, from c" f : g iy to d" : c\ 



6656 v. s. 4: 13 cf — m only audible. 



a IV 3:10 f' f" m melts into m' . 



7168 v. s. 2: 7 c" e" m = m / , distinctly. 



b iy 4: 15 — c' mf only audible. 



7936 v. s. 8: 31 — c mf only audible. 



F. Intervals with the fundamental note c iy ( = 4096 v. s.). 



Lastly, intervals with the fundamental-note c iy allow the fol- 

 lowing notes to be heard: — 



